public async Task <int?> Create(Note data, string identity)
{
if (identity == null)
{
return(null);
}
if (string.IsNullOrEmpty(data.Title))
{
return(null);
}
if (data.CategoryId.HasValue)
{
if (await parent.CategoriesProvider.Get(data.CategoryId.Value, identity) == null)
{
return(null);
}
}
Models.Note raw = Models.Note.FromModel(data);
raw.CreationTime = raw.ModificationTime = DateTimeOffset.Now;
raw.UserId = identity;
context.Notes.Add(raw);
await context.SaveChangesAsync();
return(raw.Id);
}
public async Task <int?> Update(int id, Note data, string identity)
{
if (identity == null)
{
return(null);
}
Models.Note raw = await context.Notes.FindAsync(id);
if (raw == null || raw.UserId != identity)
{
return(null);
}
Models.Note value = Models.Note.FromModel(data);
raw.Title = value.Title;
raw.Content = value.Content;
raw.CategoryId = value.CategoryId;
raw.Keywords = value.Keywords;
raw.Status = value.Status;
raw.ModificationTime = DateTimeOffset.Now;
context.Notes.Update(raw);
await context.SaveChangesAsync();
return(raw.Id);
}
public async Task <int?> Delete(int id, string identity)
{
if (identity == null)
{
return(null);
}
Models.Note raw = await context.Notes.FindAsync(id);
if (raw == null || raw.UserId != identity)
{
return(null);
}
{
IRelationsProvider provider = parent.RelationsProvider;
await provider.ClearAdjacents(id, identity);
}
context.Notes.Remove(raw);
await context.SaveChangesAsync();
return(id);
}
